Glass-cutting machine.



A. L. MILENTZ.

GLASS GUTTING MACHINE.

APPLICATION FILED 00129, 1908.

Patented Sept. 7, 1909.

5 SHEETS-SHEET l.

A. L. MILENTZ.

GLASS CUTTING MACHINE. APPLICATION FILED 00129, 1908.

Patented Sept.

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A. L. MILENTZ.

GLASS GUTTING MACHINE.

APPLICATION FILED 001". 29. 1908.

' 933,48L- Patented Sept.7,1909.

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5 BHEETSSHBBT 8. /7 1Z7 A. L. MILENTZ.

GLASS CUTTING MACHINE.

APPLICATION FILED 00129, 1908.

933,4 1, Patented Sept. 7, 1905? 5 sums-SHE T 4.

A. L. MILENTZ.

GLASS CUTTING MACHINE.

APPLICATION FILED OGT.29, 1908.

Patented Sept. '7, 1909.

5 SHEETS-SHEET 5.

ARNOLD L. MILENTZ, OF ST. LOUIS, MISSOURI.

GLASS-CUTTING MACHINE.

Specification of Letters Patent.

Patented Sept. 2', 1999.

Application filed October 29, 1908. Serial No. 459,969.

To all whom ti may concern:

Be it known that I, ARNOLD L. MILENTZ, a citizen of the United States ofAmerica, residing at the city of St. Louis, in the State of Missouri,have invented certainnew and useful Improvements in Glass-CuttingMachines, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification.

My invention relates to a machine for cutting sheets of glass intovarious sized plates, the machine being more particularly intended foruse in cutting sheets of glass into plates to be used as photographicdry plates which are made in various sizes. To provide for the cuttingof a variety of sizes of plates the parts of the machine are madeadjustable and to facilitate the glass sheet cutting operations, partsof the machine are preferably arranged at angles to each other in orderthat the glass plate may first be scored in one direction by a cutterand then scored in a direction transverse to the first direction withoutthe sheet being removed from the machine.

Figure I is a top or plan view of my glass cutting machine. Fig. II isan enlarged vertical section taken on irregular line II-II, Fig. I, andalso through the support for one of the pressure wheels. Fig. III is avertical cross section taken through one of the cutter holders and itssupport. Fig. IV is an inverted plan view of one of the cutter holders.Fig. V is an enlarged vertical cross section taken on line VV, is anenlarged vertical cross section taken on line VIVI, Fig. I. Fig. VII isan enlarged vertical cross section taken on line VIIVII, F ig. I. Fig.VIII is an enlarged vertical cross section taken on line VIIIV III, Fig.I. Fig. IX is a top or plan view of a modified form of my machine. Fig.X is a side elevation of the machine shown in Fig. IX. Fig. XI is avertical cross section taken 011 line XIXI, Fig. IX.

In the accompanying drawings, and referring first to Figs. I to VIIIinclusive, in which I have shown my machine utilizable for cross cuttingof sheets of glass: 1 designates the base of the machine which ismounted at one side by a pair of outer posts 2 and 2 and at another sideat right angles to the first mentioned side is surmounted by a pair ofouter posts 3 and 3. The posts 2 and 3 are located at corners of thebase diagonally opposite each other, while the posts 2' and 3 arelocated intermediate of the corners of the base at the sides thereofwhich they surround. a is a post located opposite the post 2. 5 is apost located opposite the post 3 and 6 is an intermediate post locatednear the center of the base and located opposite to both of the posts 2and 3. The posts 2 and 4 have mounted therein above the base asupporting rod 7 and the posts 2 and 6 have mounted therein S111-porting rod 7 that-is parallel with the rod 7. The-posts 3 and 5, and 3and 6 have mounted in them supporting rods 8 and 8 arranged parallelwith each other and at a right angle to the supporting rods 7 and 7.

9 designates supporting rails fixed to the posts 4 and 6 and extendingfrom the end of the base 1 at which the post at is located to a pointintermediate of ends of the base at which the post 6 is located, and 10are su porting rails fixed to the posts (3 and 5 and extendingtransversely relative to the rails 9. or at a right angle relative tosaid rails. The rails 9 and 10 provide for the partial support of thesheets of glass to be cut in my machine when said sheets are moved firstin one general course and then in the general course at a right angle tothe first course. In order that the sheets of glass to be cut may befully supported while passing through the machine I provide, inconjunction with each pair of supporting rails 9 and 10, adjustablesupporting and guiding members that are adapted to be so manipulated asto permit of the sheets oi glass being cut into different sized platesor sections according to the adjustment of the parts just mentioned.These parts are supported by the supporting rods 7, 7 and 8, 8, therebeing two sets of the parts, one of which is companionable with, and ismovable rela tive to the supporting rails 9 while the other set iscompanionable with and movable relative to the supporting rails 10. Theadjustable supporting and guiding parts corn panionable with thesupporting rails 9 and 10 are similar in construction and it will onlybe necessary to describe specifically one set of the parts with theunderstanding that the description applies equally to the other set.

11 designates sleeves loosely mounted upon either pair of supportingrods of the machine and s table thereon relative to the supporting railsthat extend transversely to said supporting rods. Each of these sleevessee Fig. V is provided at its outer end with an an ular flange 12 andhas fitted to it a distance ring or piece 13 between which and a nut 1iis located a supporting rail 15 upon which the sheet of lass to be cutmay rest in conjunction with its resting upon the supporting rails 9 and10 that are parallel with the rail 15.

16 is a bar fitted to the sleeves 11 and resting against their flanges12, the bar being held in fixed position upon the sleeves between saidflanges and the distance piece 13, due to the clamping action exerted bythe nuts l t. The gage bar 16 preferably has secured to it at its innerface a wear strip 1'? preferably of glass and against which the sheet ofglass that is being conducted through the machine travels to be directedin a straight course while passing over the cutter to be hereinaftermore particularly mentioned. It may be here stated that the cutter islocated in juxtaposition to either the supporting rails 9 or 10 and insetting the parts of the machine to cut different sized plates from asheet of glass. it is necessary to adjust the gage bar 16 in- *ardly andoutwardly relative to the supporting rails 9 or 10 and the cutter associated therewith. This adj ustmentis secured by the following membersseen mostclearly in Fig. V1. 18 is a sleeve extending through thesupporting rail 15 and the gage bar 10 midway between the sleeves 11 andwhich is provided at its outer end with a head 19. The sleeve 18 hasmounted upon it between said supporting rail and gage bar a distancepiece 20 and has fitted to it a nut 21 by which the supporting rail andgage bar are held in fixed positions upon the sleeve. 22 is an adjustingrod to which the sleeve 18 is loosely titted and which is provided witha plurality of pin holes 23 extending transversely of the rod and eitherof which is adapted to receive a set pin or key 2% which is adapted tobe seated in the head of the sleeve 18. The adjusting rod 22 is providedat its inner end with a screw threaded stem 22 that is loosely mountedin a bracket- 25, see Figs. I and VI, attached to the supporting rail 9or 10 that faces said adjusting rod. At opposite sides of the bracket 25and titted to the screw threaded stem of the adjusting rod are adjustingnuts 26 by which the adjusting rod may be shifted longitudinally foraccurate adjustment of the gage bar 16 relative to the supporting rails9 or 10 and the simultaneous adjustment of the parts associated withsaid gage bar. In the use of the machine, quick adjustment of the gagebar 16 relative to the supporting rails 9 or 10 to provide for thecutting of different sized plates of glass is obtained by removing theset pin 2% which permits of the sleeve 18 being shifted upon theadjusting rod 22 in order that said setpin may be introduced intoanother pin hole 23 in the adjusting rod and thereafter accurateadjustment of the gage bar is secured by manipulation of the adj ustingnuts 26.

The cutters of my machine and their supports which are associated withthe supporting rails 9 and 10 are similar in construction and thereforea description of one of the cutters and its support will sutlice.

27 is an arm located between either pair of supporting rails 9 or 10 andpivotally connected thereto at 28. This arm is slotted longitudinallyand its end farthest removed from its pointof pivotal attachment to thesupporting rails is spring supported by the following means. 29 is abracket arm fixed to one of the supporting rails and provided with an a)erture located beneath the arm 27. 30 is an adjusting screw havingheads 31 located at its upper and lower ends and having screw threadedengagement with a nut 32 that is pivotally mounted in the arm 27,thereby providing for the vertical movement of said arm through themedium of the adjusting screw by the manipulation of either of itsheads. The arm 27 rests upon a spring seat washer 33 that surmounts alift spring 3t interposed between said washer and the bracket arm 29.his lift spring serves to yieldingly support the arm 27 in order that itmay move downwardly when pressure is exerted upon it and the upwardmovement of the arm under the influence of the lift spring is controlledby the head 31 at the lower end of the adjusting screw.

35 is a cutter bar holder rotatably mounted in the slot in the arm 27.This cutter bar holder is provided with a way 36 in which is a cutterbar 3? that is provided with a diamond point 38 or other suitable cutterthat is adapted, in the use of the machine, to project slightly abovethe surface of the supporting rails 9 or 10. The cutter bar is held in afixed position in the holder 35 by a set screw 39 and it may be shiftedin the way 353 in said holder by an adjusting screw 4:0 for the purposeof causing the cutter end of the bar to protrude beyond the holder tothe desired extent. The holder 35 is preferably cylindrical in shapeexcept at the point at which the cutter bar projects therefrom and it isadapted to be rotated upon its axis to position the cutter at thedesired angle relative to the sheet of glass that. is being cut whilemoved upon the supporting rails of the machine in order that the bestcutting action may be secured.

41 is a retaining plate mounted upon the frame 27 adjacent to the cutterbar holder. This retaining plate is secured to the frame by set screws42 and it is adapted to be held in engagement with the cutter barholder, as seen in Fig. II, for the purpose of retaining the holder in afixed position after it has been adjusted.

43 designates a standard surmounting the base of the machine andprovided at its upper end with a head 44.

45 are arms secured to the head of the standard and extending therefromat right angles to each other and in directions toward the supportingrails 9 and 10. These arms serve as supports for devices of similarconstruction and a description of the devices on one arm will applyequally to the devices on the other arm.

46 is a hollow extension attached to either ot the arms 45 and extendinginto a position above either the supporting rails 9 or 10.

47 is a spindle located in the extension 46 and extending longitudinallythereof, the outer end of the spindle being located ex terior of saidextension and above one of the cutters of the machine. Upon this spindleis rotatably mounted a pressure wheel 48 that is adapted to bear againsta sheet of glass when it is being conducted through the machine in orderthat the cutter beneath the wheel may perform its office of cutting orscoring the glass at its lower side. The spindle 47 is pivotallysupported at its rear end by pivot screws 49 mounted in the extension 46and having conical inner ends that are seated in the sides of thespindle, as seen in Fig. VIII. In order that the spindle may be so heldas to press yieldabl upon the sheet of glass beneath it, I provide apressure spring 50 that rests upon the spindle, see Figs. II and VII,and which may be varied in tension by an adjusting screw 51 in which itis partially housed and which is mounted in the extension 46 above thespindle. The adjusting screw 51 has fitted to it a jam nut 52 by whichthe screw may be retained in a fixed position after it has beenadjusted.

is a lower limitation screw mounted in the extension 46 beneath thespindle 4'7 and serves to restrict the downward movement of saidspindle.

54 are side limitation screws mounted in the extension 46 and serving torestrict the lateral movement of the spindle 47.

55 designates a collar slidably mounted upon either of the arms 45 andadapted to be held in a fixed position upon the arm by a set screw 56.The collar 55 is provided with a hanger arm 57 that has a leg 58.

59 is a journal arm having its upper end pivoted at 60 to the hanger arm57 and to the lower end of which is journaled a guide wheel 61. Thisjournal arm is loosely connected to the leg 58 of the hanger arm 57 by aretaining screw (32 and it is backed by a spring 63, see dotted linesFig. II, that serve to normally press the journal arm and the guidewheel supported thereby toward the opposing gage bar 16 of the machine.When a sheet of glass is being conducted through the machine it travelsbetween one of the gage bars and its wear strip and one of the guidewheels 61 that opposes said gage bar, and during this travel of thesheet of glass it is yicldably held against the wear strip of the gagebar, due to the pressure exerted thereagainst by the spring controlledguide wheel.

In the practical use of my machine, the sheets of glass to be cut arefirst laid upon either the supporting rails 5) or 10 and the supportingrail 15 that is opposite the other supporting rails, and one edge of thesheet of glass is placed in contact with the wear piece of the gage bar16 adjacent to the supporting rail 15 while the other edge bears againstthe guide wheel (ii that opposes said gage bar. The sheet of glass thenmoved forwardly so that it passes beneath the pressure wheel 48 above itand over the cutter beneath said wheel with the result of cnusing saidsheet of glass to be cut at its lower side by the yieldably supportedcutter. The movement of the sheet of glass is continued until the sheethas been cut or scored from one end or side to the opposite end or sidethereof, while it is traversing the particular cutter just mentioned.The sheet of glass is then moved transversely of the machine upon theother set of supporting rails upon which its position is gaged in amanner similar to the gaging in its first course of movement and thesheet of glass, by passing over the second cutter and beneath the secondpressure roller, is cut or scored in direction transversely of the firstcutting or scoring. The sheet of glass, being then taken from themachine, may be readily severed into the desired plates or sections. InFig. I, I have illustrated in dotted lines a sheet of glass representedas resting upon the supporting rail 15 companionable with these rails,the sheet of glass in this position being for instance, that occupied byit in the first or initial cutting operation and I have shown in fulllines the sheet of glass resting upon the supporting rails 10 and thesupporting rail 15 companionable therewith, the sheet in this positionbeing here shown as it appears after the initial cutting or scoring in.one direction has taken place and it is being cut or scored in thetransverse direction.

In Figs. IX to XI inclusive, I have shown a modification of my glasscutting machine intended for use in cutting sheets of glass in only onedirection. In this modification the sheets from which the plates ofglass are to be cut are moved in one general course only instead ofbeing moved first in one course and then in a course transversely to thefirst course as provided for in my machine previously described. 1designates the base of the modified machine which is surmounted bycorner posts 2 in which are mounted guide rods 8 arranged parallel itheach other. 9 are main supporting rails that, in addition to theirservice as supports for the sheets of glass, serve to support the arm 27in which the cutter bar holder 35 is mounted. 48* is the pressure rollerlocated above the cutter bar holder and supported by the arm i?projecting upwardly from the base 1. it) designates a cross headslidably mounted upon the guide rods S and provided with a gage bar 16that opposes the supporting rails 9 and is provided with awear strip 17.l5 is a supporting rail carried by the cross head just mentioned andupon which the sheets of glass to be cutrest while resting also upon therails 9*. The cross head 16 is adjustable upon the guide rods by whichit supported for the purpose of moving the gage bar 16 relative to thecutter of the machine to determine the width or length of the plate ofglass to be cut and the adjustment of said cross head is accomplished bythe following parts: 64 is a shift rod that passes centrally through thecross head 10" and has screw threaded engage inent. Upon the forward endof the shift rod is a jam nut (35 that is adapted to bear against thecross head around the shift rod to hold said rod from accidentalmovement. lhe shift rod is loosely mounted in a post (it; snrmonntingthe base of the machine and it is adapted to be moved longitudinally byan operating lever (37 to impart forward and backward movement to thecross head. Upon the shift rod in front of and back of the post (it; areadjustable stop collars 68 by which the degree of forward or backwardmovement of the shift rod and the cross head may be controlled. Theshift rod is adapted to be rotated in either direction for the purposeof so altering the position of the cross head relative to the cutter ofthe machine as to space the gage bar of said cross head to a greater orless degree from the cutter in order that plates of glass of variousdimensions may be cut in the use of the machine. The altering of theposition of the cross head just referred to is provided for due to thescrew threaded engagement between the cross head and the shiftrod. 4

I claim:

1. In a glass cutting machine, a runway I support, a pivotally mountedcutter holder, a cutter in said holder, a nut in the free end of saidholder, an adjusting screw operable in said nut, a stationary member inwiich said adjusting screw is operable, and a spring interposed betweensaid cutter and stationary member.

2. In a glass cutting machine, a runway support, a cutter holder, acutter supported by said holder, a pressure roller above said cutter, aspindle by which said roller is carried, a support to which said spindleis pivoted, a limitation screw in said spindle support beneath thespindle, an adjusting screw in said spindle support above the spindle,and a spring associated with said adjusting screw and bearing upon saidspindle.

3. In a glass cutting machine, runway rails for the support of a sheetof glass, means for cutting the glass, an adjustable gage bar arrangedparallel with said rails whereby the sheet of glass may be movedtransversely of said rails, and an adjustably supported guide rolleropposing said gage bar.

t. In a glass cutting machine, runway rails for the support of a sheetof glass, means for cutting the glass, a gage bar arranged parallel withsaid runway rails, an adjusting rod provided with a series of pin holes,a sleeve associated with said gage bar and operable upon said adjustingrod, and a set pin mounted in said sleeve and adapted to enter either ofthe pin holes in said adjusting rod.

5. In a glass cutting machine, a pair of cutters, one of which isarranged at an angle to the other, and stationary means upon which asheet of glass may be conducted to be cut first by one of said cuttersand thereafter by the other cutter and at an angle to the first cut,substantially set forth.

(3. In a glass cutting machine, a pair of stationary runway supports fora sheet of glass arranged at angles to each other, a cutter associatedwith each of said supports and located at angles to each other, andmeans for gaging the position of a sheet of of glass while-it istraversing said cutters, substantially set forth.

7. In av glass cutting machine, a pair of stationary runway supports forasheet of glass arranged at angles to each other, a cutter associatedwith each of said supports and located at angles to each other, andmeans for gaging the position of asheet of while it is traversing saidcutters; said means comprising gage bars shiftable relative to said pairof supports, substantially as set forth.

8. In a glass cutting machine, a pair of stationary runway supports fora sheet of glass arranged at angles to each other, a

cutter associated with each of said supports traversing said cutters;substantially as set and located at angles to each other, and means forgaging the position of a sheet of glass While it is traversing saidcutters; said means comprising shiftable gage bars and guiding membersbetween Which the sheets of glass are adapted to pass While forth.

ARNOLD L. MILENTZ In the presence 0f- I'IOWARD G. C001; EDNA B. LINN.

